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Problem 20 (2022 AMC 10B)

AMC 10Hard

From module Inscribed and Central Angles

Problem

Let ABCDABCD be a rhombus with ADC=46\angle ADC = 46^{\circ}. Let EE be the midpoint of CD\overline{CD}, and let FF be the point on BE\overline{BE} such that AF\overline{AF} is perpendicular to BE\overline{BE}. What is the degree measure of BFC\angle BFC?

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